Here's a picture of a nice junction box for flavor.

My take:

Railless systems are bad and essentially unserviceable. If any repairs need to be done to anywhere other than the outside top panels, it requires an unreasonable amount of effort to do those repairs.

Given the necessity for rapid shutdown in US installs and the track record of generac SnapRSs and now Tesla MCIs needing significantly more replacement than they proposed. Not to mention enphase or solar edge installs. I think it's absolutely criminal.

The companies are throwing up fast solar with railless promising that it will save a few bucks when they're going to lose that much on increased difficulty of service on the other side

Edit: typo, my bad!